With less than six weeks until Election Day, President Obama has opened up significant leads over Mitt Romney in Pennsylvania, Ohio and Florida, according to a new Quinnipiac University/CBS News/New York Times poll of likely voters.

Mr. Obama holds a 10-point lead in Ohio among those who say they will definitely vote, a lead propelled by a 25-point advantage among women. Romney holds an 8-point lead among men. The president holds a 35-point edge among voters under 35 years old, and a 5-point lead among those ages 35-64; the two candidates are effectively tied among Ohio seniors. Sixty-two percent of Ohio likely voters say the auto bailout, which had a significant impact on the state's economy, was a success, while just 30 percent say it was a failure.